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Detail Information Forging materials:ASTM1035,ASTM1045,ASTM1021,ASTM1040,ASTM1320/20Mn2,ASTM1340/40Mn2,ASTM5120/20Cr,ASTM5140/40Cr,ASTM4119/20CrMo,ASTM4140/42CrMo,ASTM4135/35CrMo,ASTM4340/40CrNiMo,ST ...